acidity

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English[edit]

Etymology[edit]

From French acidité, from Latin aciditātem, accusative singular of aciditās (sourness, acidity), from acidus (sour, acid). See acid.

Pronunciation[edit]

  • (UK) IPA(key): /əˈsɪdɪti/
  • (file)

Noun[edit]

acidity (countable and uncountable, plural acidities)

  1. The quality or state of being acid.
  2. Sourness; tartness; sharpness to the taste.
    the acidity of lemon juice
    Empty stomachs lead to acidity and leave a sour taste in the mouth.
  3. (pathology) Excessive acid quality, as in gastric secretions.
  4. (figuratively) A caustic, sour, biting, or bitter quality.
    • 1912, Sir Arthur Conan Doyle, The Lost World[1]:
      "What shall we call it?" he asked. "Why should you not take the chance of perpetuating your own name?" said Summerlee, with his usual touch of acidity.
    • 1913, Sir Arthur Conan Doyle, The Poison Belt, page 60:
      It was a brave, good speech, a speech from that staunch and strong spirit which lay behind all the acidities and angularities of the old zoologist.

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